“This unit has a joystick or Voltage Controlled low-pass filter. It accepts two inputs that are summed and also voltage controllable (or knob). The joystick is modular, and can be patched to control or attenuate other equipment.” – curiousinventor.com
All these modules are adding up to a unique and inexpensive modular synth. If your looking for a unique home-brew synth you may also want to check out the Mochika2 or the Sound Lab Mini-Synth. The new VOS Filter will cost you $80 in parts or $230 built.
Do any of you guys have a VOS or alike?
Related post: The Voice of Saturn Synthesizer & Sequencer